Heating-furnace.



J. W. GALVlN. HEATING PURNACE.

APPLIGATION FILED MAY a1, 19

Patented Mar. z5, 1913.

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3 SHEETS--SEEET l.

bbl/I J. W. GALVN.

HEATING UHNACE.

APPLICATION FILED MAY31,1912.

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3 EHEETS'SHEET 3.

[EEN W. GALVN, GE INDIANA HELBR, lllIANil..

rrna'rrnernnneon.

Speeicaion of Letters atenz.

lilfar. 25, il 3l Application filed May 3.1., lelie A Serial o. oor

it known that. l, JOHN W. GALvrN, a

luizen or the llniled States, residing at ln- .diana Harbor, in thecounty of ljalre and Stare of Indiana, have invented certain new andesel-ul -lmprovemenias 1n HeatmgJuu noces, or which lle following is aspecirlues or intermediaire the checkergases, i

work, resul-sing in the clogging or obstructo'" said passages,consequently elirniriating rlie necessary' draft from the ifurnac.lerougli lie doivncomers ibo the checker-- work. lin furnace operation,there is oon-l eid'erable accumularion of: this slag, Wliicli lende toobslruet lie flow of lire heated ieding and obstructing the Work I vraceand resulting in the necesf y shui/ling down and clearing out theaeoumulaleu lag therein, rliereoy causing muon loss rime and laloor. l

' 'Elx-e essential object or this invenrion ie l provide a. -urnaceconstruction wherein an improved Slag pocket is utilized, so tha theinterimulalions or slee' may be removed therefrom without in erriringwith the op.- eraion or ille furnace and with comparao. ine for livelylittle time and labor, and rlie urnaee Y gases will always be free to'lion' fr m. the furnace through t-lie doivncomcr to liecliecire'r-worl.

'llie invention urr'lier oensisrs in the cures of construction andcombination of hereinafter described and claimed. the drawings, Figure 1is a verrical :Secional furnace end elevation; Fig'. Q is a crosssection taken on line 2-2 or Fig. l; liiguB-ie e furnace end elevation;Fig. e is a sectional derail, taken on line l--lof 2, showing apreferred forro or' removable damper; and Fig. 5 is a cross sec- Jfionstaken on line 5-5 or' Fig. 1l.

Referring to Fig'. l,- a downcomer 6 is Shown, communicating with andleadingl from a furnace heating chamber 7., merging al. irs lowerendinro companion dues or duets 8 and 9 respectively, the slag 'fromsaid lieaing'n/rnace accumulating in lie base of the flue or duct 8which is immediately below Jdie downc'omer 6, and said dues or dooie, asshown in Fig.' 2, open ino separaie adjacenfa checker-work chambera-land -clined ll of any approved form oir' construction. Two separateremovalile slag dampers l2 and-1B are showin for eecting a completedischarge or" the accumulated slag Within r-he duct or chamber 8 to theslag pit le therelieneatli. le leer; shown in Figs. '3, l

and 5, these movable dampers l2 and 13 are positioned upon suitablecross eupporlf4 ing' rails l5 of any approved construction. lt ispreferred, however, to use channel rails anchored in llie brick-Work ormasonry, or 'i"-sl1aped rails may be employed, provided a` strongsustaining surface ie available. Said supporting rails l5 are showninclined transversely of and adjacent to the base or the slag'cliamlier, for maintaining removable dempers in Sei position.

En practical use and operation, irlias been found `that the slag as. itaccumulates 'kende to solidify and rake the form of a compaci;homogeneous mass which it -is exceedingly dilioul to disintegrate andremove *dierefrom, and lfor this purpose ll 'prefer to use a damperWedge lo of any suiteole shape or construction which may lend lo mainainthe damper in eet position, and when vliilidrawn from the damper andsupporring rails will aiord a clearance for the damper sulicien't to.enable it ro fall clear of elle accumulatedmass o1 slagwialiin 'diecliamber, for permitting its ready removal and withdrawal therefrom.loviously, form of Wedge member may be employed .for this; purpose,although its use is not absolutely essential. I

l; lias been found t-hatif the removable dempers l2 and 13 are Withdrawnfrom tl'le slag chamber approximately once a Week, it iesuiicient forenabling the accumulated to be removed therefrom with a minimum oftimeand labor, and Without unduly interfering with the operation of thefurnace, whereby the flow of 1Lgases from the .furnace chamber into theowncomer and through the checkerovork is never substantially impeded oro`structed These removable dempers may .Je made of steel, cast iron,

or any4 other material adapted for the uses and purposes contemplatedherein, and the auxiliary Wedge members may be orf any "racticalformation for suetanrimgl;y and locking the dampers, whichare-preferably in position transverse-ly of fthe.v

in 'eet slag chamber.

lrererably three or four inches.' oir-leen@ any MBE

movable dampers 'for enabling the accuinulation of slag to be withdrawnfrom the furnace structure, ineens for supporting said dainpers in fixedset position transversely of i the flue beneath and adjacent to thedown- 1 comer, and one or more .wedging niembei's positioned` upon saidsupporting incans be neath said dampers, for locking said dampcrs in setposition, which wedging members lvlicn withdrawn' afford a `clearancefor enabling the dampers to be removed able the accumulated slag to betaken from -to the checker-work, substantially as de- E scribed. l

4:. In a furnace,' the combination of a downcoiner, a pit beneath thelower end of the same, and a removable plate interposed without unduecontact with the accumulated Q mass of slag therein, whereby acontinuous Q passage is always aiforded for tlicltravel of i the`combustion gases from the furnace 5 chamber tliro-ugh the dowiico'merlto the ing` the accumulated slag and sustaining the samepout of contactfrom the plate, substantially asilescribed.

checker-work, substantially as. described.

2. ln a, furnace,'the combination of a downconier and lines leadingtherefroin )re- 3Q movable dainpersl positioned tiansversely through theflue beneatl'iyand adjacent tiol the downcoiner, a pluralityof.traneverse'` supporting channel bars partially embedded in thefurnace structure7 the projecting sides ther-cof forming supportingsurfaces for said dempers, which when withdrawn enable the accumulatedslag to be'rcmov-cd fron'i the furnace structure, thereby always itravel and flow of the combustion .gascsi through the Hue beneath andadjacent. to the downcomer, wedginginembers for locking the removabledempers in fixed set position, L

53 and when removed enabling the dainpers to be withdrawn, and apluralit of transverse supporting channel bars partially embedded in tefiirnace structure, the pro3ect-ing sides vthereof forming supportingsurfaces for 55 said dempers, which when withdrawn enbctween the pit andthe lower end of the downcomer for the purpose of catching andsustaining the accumulated slag, substantially as described.

5. In a furnace, the combination of a downcomer, partitions forproviding a slag pocket attlie lower end of the saine,a pit beneath saidslag pocket, and a removable plate interposed between the slag pocketand the pit, substantially as described.

G. in a furnace, -the combination lof fr, downcome'r, a pit beneath thelower endl of the same, a removable plate interposed between the lowerend` of the downcomer and the pit, and a layer of sand on the uppersurface of said plate for the purpose of receiv- 7. ln a furnace, thecombination of a 35 downcomei, apit beneath the lower end of. the same,and a slidable plate introduced between the pit and the4 lower end ofthe down-comer for thepurpose of catching and sustaining aceun'uilatedslag, whereby as the 90 plate is slid horizontally to place theldownoomer in connnunication with the pit and accmnulated slag sustainedby the upper face of the plate is stripped therefrom and allowed to fallinto the pitJ substantially as described. l i i 8. in a furnace, thecombination of a down-comer, a pit beneath the lower end of the same,side rails at the sides' of the pit, and a removable plateslidablylmou'nted on 10Q said rails, and adapted-to be forced inward toseparate the down-comer from the pit, whereby slag in the down-comerwill be deposited on the upper face of the plate, sub stantially asdescribed.

JOHN l/V. GAL'VN. "Witnesses WALKER BANNI'NG9 Roer. SMITH.

